EP0957066A1 - Verfahren zum Fällen oder Ausflocken von Inhaltsstoffen aus Lösungen - Google Patents
Verfahren zum Fällen oder Ausflocken von Inhaltsstoffen aus Lösungen Download PDFInfo
- Publication number
- EP0957066A1 EP0957066A1 EP98105346A EP98105346A EP0957066A1 EP 0957066 A1 EP0957066 A1 EP 0957066A1 EP 98105346 A EP98105346 A EP 98105346A EP 98105346 A EP98105346 A EP 98105346A EP 0957066 A1 EP0957066 A1 EP 0957066A1
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- EP
- European Patent Office
- Prior art keywords
- water
- ion exchange
- exchange material
- ions
- solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/02—Softening water by precipitation of the hardness
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
- C02F1/62—Heavy metal compounds
- C02F1/64—Heavy metal compounds of iron or manganese
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
- C02F2103/023—Water in cooling circuits
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/08—Corrosion inhibition
Definitions
- the invention relates to a method for precipitating or flocculating ingredients Solutions.
- Interfering ionic water constituents can be removed by converting them into the form of a sparingly soluble salt or mineral and thus falling.
- Many metal ions e.g. B. Ca 2+ , Mg 2+ , Fe 2+ , Me 2+ ions can be precipitated in the form of poorly soluble hydroxides; such reactions can be controlled via the pH value.
- Ca 2+ ions in water are removed on an industrial scale by precipitating them as CaCO 3 (lime) (decarbonization). This reaction is also controlled via the pH.
- flocculation is closely associated with the precipitation of water constituents and sedimentation; because the removal of the (precipitated) water constituents sets ahead that you can also separate them from the water. With flocculation or It is essential to sedimentation how the precipitated products continue to grow and / or can agglomerate. By adding certain salts (aluminum salts, Iron salts) can control this behavior.
- the object of the invention is to provide an improved method for felling or flocculation of ingredients from solutions, especially water.
- the method is characterized in that the solution with is brought into contact with at least one ion exchange material which the Gives precipitation or flocculating ions into the solution and / or the precipitation or flocculating functional groups on its surface having.
- Ion exchange materials are indeed used in water and wastewater treatment in order to exchange unwanted ions for desired ions or ions that are less disruptive for the respective intended use.
- softening systems which bind Ca 2+ and / or Mg 2+ ions in exchange for Na + or H + ions by means of cation exchangers; with anion exchangers (at least in the Cl - or OH - form) unwanted anions (NO 3 -, HCO 3 -, etc.) can be removed from the water.
- Methods are also known with which Cu 2+ ions or heavy metal ions are removed from the water by ion exchange. All these processes have in common that the ions removed from the water are bound to the resin; if the capacity of the resin is exhausted, it must be regenerated; In the regeneration process, for example, the concentrated heavy metal ions can be removed from the regenerate.
- the ion exchange is a surface process and depends on the degree of Loading of the ion exchange material with the ions necessary for the reaction and on the type and concentration of ions in the solution, which counteracts the ions can be exchanged on the Harz.
- Exhausted ion exchange material especially resins, can be easily removed from the Remove and regenerate the reaction vessel or basin. The regenerated material can then be returned to the process.
- Ion exchange materials can also be used to carry the ions that control flocculation in the solution.
- ions that promote the flocculation of water constituents e.g. Al 3+ and Fe 3+ ions
- an ion exchange material one with Al 3+ and Fe is required 3+ ions at least partially loaded ion exchange material. All advantages apply here too.
- metering pH-controlling ions e.g. anion exchanger in the OH - form
- flocculant e.g. cation exchanger in the Fe 2+ form
- a specially conditioned ion exchange material used as a catalyst for the precipitation of water constituents become.
- the situation is that the solution is thermodynamic seen oversaturated with a dissolved phase; anyway takes place in finite periods of time no failure takes place which will bring the solution into balance would.
- Such metastable solutions lack suitable growth sites, at which the failure can take place: Suitable growth sites are Crystal nuclei of the phase to be precipitated or special heterogeneous surfaces that the Significantly reduce the nucleation work and thus the formation of heterogeneous germs in the Allow low supersaturation range.
- An example of such a solution is Water that is oversaturated with lime.
- Ion exchange materials also get their specific properties through certain functional groups: Strongly acidic ion exchangers carry, for example, the sulfonate group as active functional groups; weakly acidic ion exchangers have, for example, the carboxylate group (COO - ) as active functional groups.
- the carboxylate group of a weakly acidic ion exchange material is preferably completely charged with Ca 2+ ions via a loading process, this loaded material is suitable for catalytically forming CaCO 3 crystal nuclei on its surface in aqueous, calcareous solutions.
- a weakly acidic ion exchange material conditioned in this way can for example as a nucleator and filter pellet in conventional decarbonization camps be used; further to increase the nucleation rate and thus the Performance in that described in German patent application DE 19606633 A1 Method and device.
- the content of DE 19606633 A1 belongs to the disclosure of the present application.
- the catalytic efficiency depends on the bond strength (electrostatic association) between the carboxylate group and the Ca 2+ ion: Too strong a bond would not allow the association of carbonate ions from the solution necessary for nucleation; too loose a connection would lead to the loss of Ca 2+ and thus to the destruction of the catalytic complex.
- the electrostatic association of carboxylate group and Ca 2+ ion at the ion exchange material / water interface is influenced by an electric field at the interface.
- the catalytic performance of these specially loaded ion exchange materials is consequently increased if they are applied, for example, to the electrodes described in the international application WO 95/26931 or are produced therefrom and thus the functional groups are suitably modulated or adjusted with the intrinsic electric field described there.
- the content of WO 95/26931 belongs to the disclosure of the present application.
- the decarbonization of water containing lime is achieved by raising the pH of the water by adding certain chemicals (milk of lime, caustic soda, soda) and thus strongly shifting the lime-carbon dioxide balance to supersaturation.
- milk of lime, caustic soda, soda milk of lime, caustic soda, soda
- the onset of homogeneous nucleation produces lime crystal nuclei from which the lime dissolved in the water precipitates (Mg 2+ ions precipitate out as Mg (OH) 2 ).
- FIG. 2 shows a device for producing seed crystals.
- 3 and 4 show further embodiments of a for performing an inventive Appropriate device.
- the raw water flows through line 2 first through a bed of strongly basic ion exchange material 3; about ion exchange the pH of the raw water is adjusted to a pH between 9 and 10 (each after decarbonization performance) raised.
- the pH value is controlled the average contact time of the raw water with the ion exchange material 3 (Flow, amount of resin).
- the pH increase leads to homogeneous Nucleation and subsequently limescale precipitation.
- the precipitated lime is in the subsequent filter stage 4 according to the prior art via sedimentation and / or Filtration separated from process water (sedimentation filter 6).
- a third stage 5 the pH is adjusted if necessary.
- the plant (stage 1) is expediently operated in a fluidized bed mode.
- the Ion exchange material supply and discharge device is periodic or continuous used ion exchange material removed from the fluidized bed and through fresh resin replaced.
- One is via backwash lines 9 and flushing outlets 10 Cleaning possible.
- a strongly basic anion exchanger in the OH - form for example Lewait MP 600 from Bayer / 5 / has a capacity of typically 1 val / l - assuming a requirement of 1 mmol / l OH - ions per liter of raw water, see above approx. 1000 l can be prepared accordingly per liter of resin.
- the amount of resin required for a certain treatment performance depends on the contact time resin - water required to raise the pH. With the water described above, a contact time of approx. 30 s is sufficient for raising the pH to 9.5. For a decarbonization plant with a capacity of 100 m 3 / h, this results in a necessary resin quantity of approx. 850 l.
- a weakly acidic ion exchange material preferably fully loaded with Ca 2+ ions, for example a Lewait CNP 80 resin from Bayer, catalytically triggers lime crystal nucleation in lime-containing solutions.
- the latter resin can be used, for example, to assist or replace the decarbonization described above.
- a weakly acidic resin in the Ca 2+ form forms crystal nuclei even at lower supersaturations; With the use of this resin it is possible to conduct the process in such a way that the pH values do not have to be controlled via the pH value 9 and thus the supersaturation remains in a range in which a high crystal nucleus density is not suddenly produced.
- the converted CNP 80 can be dried, ground and applied to you as a thin layer Carrier, for example on the in the international application WO 95/26931 described electrodes, apply.
- the intrinsic field of such a kind coated electrode can be the catalytic activity of the functional groups Taxes; In this way, crystal nucleation can be triggered in a targeted manner - this effect can be used in water treatment for a defined amount of lime crystal nuclei to supply the process water.
- the invention is by no means restricted to known ion exchange materials. It is only essential that the material used has active groups can, which is able to take up ions from the solution and release others for it. These groups must therefore have a finite dissociation constant in the considered liquid.
- the materials have catalytic properties, it is also from Advantage if materials are used that are favorable for crystallization Have microstructure.
- the basic matrix, to which the groups are applied is a two-dimensional template which has a good agreement with the lattice constants of the crystal to be formed, so that electrostatic and sterochemical requirements as in forming crystal prevail.
- the active groups must then be prepared in such a way that at least one ionic component of the substance to be crystallized is absorbed. This is then capable of nucleation in supersaturated solutions trigger on the interface.
- Suitable materials in this regard are preferably polyacrylate, polystyrene, activated carbon (as granules or porous semi-finished parts in the form of plates, cylinders, hollow cylinders), which can preferably be functionalized with a carboxylate group.
- the carboxylate group is mostly saturated in the H + form due to the manufacturing process.
- the H + ions are replaced by cations of poorly soluble salts (for example Ca 2+ , Mg 2+ , Fe 2+ , Cu 2+ etc.), so that ultimately an ion exchange material in of the respective cation form (Ca 2+ form, Mg 2+ form, Fe 2+ form, Cu 2+ form etc.).
- the geometric position of the Ca 2+ ions on the surface of a polyacrylate resin ball of the weakly acidic ion exchange resin Lewatit CNP80 from Bayer is determined by the molecular geometry of the polyacrylate matrix. The surface created in this way now has good electrostatic and stereochemical properties for the formation of CaCO 3 crystals.
- the electrostatic and stereochemical properties for the catalytically induced formation of crystal nuclei at the respective Surface of importance are determined by the structure of the base material (e.g. polyacrylate), on which the active groups sit.
- the electrostatic properties can also be controlled by an external electrostatic Influence field. This can be done in a simple manner by introducing the Catalyst material between two field-generating electrodes are implemented.
- the container wall for example, a fluidized bed reactor
- Switch as cathode and attach an anode centrally in the tank.
- Such a catalyst can be used to form seed crystals, which the water flow distributes in the subsequent installation and piping system. Seed crystals are thus obtained as a precipitate. It is known that such crystal nuclei can prevent the deposition on pipe walls or heating registers of water heaters through their growth process.
- a fluidized bed reactor 11 volume approx. 6-8 liters, diameter 15 cm, height 60 cm
- a catalyst filling e.g. 4 liters
- the catalyst bed 12 is formed, for example, by a weakly acidic cation exchanger in the Ca 2+ form (e.g. Lewait CNP90 from Bayer).
- the raw water flows from the inlet 13 via a pump 14 and a nozzle bottom 15 and a support layer 16 made of quartz sand through the catalyst 12.
- the pump 14 keeps the catalyst bed in suspension (circulation) via the check valve 18 and the pump 14 constant flow and friction of the catalyst grains prevents the grains from blocking and additionally supports the detachment of the crystal nuclei from the catalyst surface.
- the crystal nuclei are discharged into the connected installation system as seed crystals when water is drawn (line 17).
- a catalytically active material prepared in this way is particularly good as a sediment for a method described in German patent DE 19606633 A1 Treatment of water.
- a physical water treatment device can work electrostatically, for example.
- Water treatment devices are preferably suitable, as described in international application WO 95/26931 and German patent application DE 19606633 are described.
- the water to be treated is used a pump 14 is circulated through the ion exchange material.
- the water treatment device 19 can either be installed in this circuit (Fig. 3) or downstream of this circuit (Fig. 4).
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Treatment Of Water By Ion Exchange (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Physical Water Treatments (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Compounds Of Unknown Constitution (AREA)
Abstract
Description
- Das Ionenaustauschermaterial ermöglicht die gezielte Hinzugabe der für die Fällungsreaktion allein notwendigen Komponenten, beispielsweise bei der Entkarbonisierung von kalkhaltigem Wasser: Das Prinzip der Entkarbonisierung von kalkhaltigem Wasser besteht darin, den pH-Wert anzuheben, um das Kalk-Kohlensauregleichgewicht so zu verschieben, daß die Ca2+-Ionen in Form von Kalk ausfallen. Konventionell erreicht man die pH-Wert-Anhebung durch Hinzudosieren von Ca(OH)2, NaOH und/oder NaCO3. Dieses Hinzudosieren hat den Nachteil, daß mit den basisch wirkenden OH- bzw. CO3 2--Ionen zusätzliche Ca2+- oder Na+-Ionen in das Wasser gelangen, die dem Verfahrenserfolg zum Teil entgegenstehen (zusätzliche Ca2+-Ionen, die gefällt werden müssen) bzw. begrenzen (Natriumgrenzwerte im Trinkwasser).
- Bessere Kontrolle des Fällungsprozesses durch Vermeidung lokaler Überdosierung, insbesondere in Kombination mit einer Wirbelbettvariante.
- Die Möglichkeit der Steuerung des Fällungsprozesses über die Kontaktzeit des aufzubereitenden Wassers mit dem Ionenaustauschermaterial.
- Die Recyclierbarkeit des Ionenaustauschermaterials.
- Die Verwendung von Natronlauge zur pH-Wertanhebung ist problematisch, da es am Dosierort der Natronlauge lokal zu einer extremen pH-Wertanhebung kommt, die zum Ausfall unerwünschter Hydroxide führen kann. Diese Hydroxide, beispielsweise Ca(OH)2 -Kolloide, werden als Festkörper in das Prozeßwasser verschleppt und Erschweren die nach dem Entkarbonisierungsprozeß notwendige pH-Werteinstellung.
- Die Probleme bei der Verwendung von Kalkmilch (Ca(OH)2) liegen in der Zubereitung der Dosierlösung und in der Dosierung: Es ist praktisch unmöglich, eine Dosierlösung herzustellen, die frei von Ca(OH)2-Kolloiden ist. Werden diese Kolloide in der Entkarbonisierungsstufe nicht vollständig aufgelöst, so bilden diese ein großes Problem bei der in der Folge notwendigen pH-Wertabsenkung.
- Ziel einer optimalen Prozeßführung ist weiters eine kontrollierte Keimbildungsrate; zu viele Kristallkeime konkurrieren in ihrem Wachstum und wachsen nur zu kleinen Kalkkristallen heran, die nur schwierig vom Prozeßwasser abgetrennt werden können (zu geringe Sedimentationsgeschwindigkeit, aufwendiges Filtrieren).
- Hoher Trübstoffgehalt im Überlaufwasser des Reaktors und damit die Notwendigkeit einer nachgeschaltenen Filtrationsstufe.
- Hoher ph-Wert des Produktwassers muß aufwendig gesenkt werden.
- Hoher Chemikalienverbrauch.
Claims (13)
- Verfahren zum Fällen oder Ausflocken von Inhaltsstoffen aus Lösungen, dadurch gekennzeichnet, daß die Lösung mit mindestens einem Ionenaustauschermaterial in Kontakt gebracht wird, welches die Fällung oder Ausflockung bewirkende Ionen in die Lösung abgibt und/oder die Fällung oder Ausflockung katalytisch bewirkende funktionelle Gruppen an seiner Oberfläche aufweist.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß man zur Fällung von Kalk aus Wasser ein mit OH--Ionen beladenes Anionenaustauschermaterial verwendet, welches durch Abgabe von OH--Ionen ins Wasser dessen pH-Wert zum Induzieren der Kalkfällung anhebt.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß man zum Fällen oder Ausflocken von Inhaltsstoffen in Form von Hydroxiden ein mit OH--Ionen beladenes Anionenaustauschermaterial verwendet.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß man zur Kalkkristallkeimbildung in Wasser auf katalytischem Wege ein vorzugsweise schwachsaueres Ionenaustauschermaterial in der Ca2+-Form verwendet.
- Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß man ein schwachsaueres Ionenaustauschermaterial verwendet, dessen funktionelle Gruppen Carboxylatgruppen (COO-) sind, welchen die Gegenionen, vorzugsweise Ca2+, tragen.
- Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Lösung zum Kontakt mit dem Ionenaustauschermaterial in einen Reaktortank geführt wird.
- Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Ionenaustauschermaterial im Bereich seiner mit der Lösung in Kontakt stehenden Oberfläche einem vorzugsweise einstellbaren elektrischen Feld ausgesetzt wird.
- Verfahren nach Anspruch 7, dadurch gekennzeichnet, daß die feldererzeugenden Elektroden im bzw. am Ionenaustauschermaterial angeordnet werden, wobei sich zwischen ihnen keine Lösung befindet.
- Verfahren nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die zu behandelnde Lösung - vorzugsweise über eine Pumpe - im Kreislauf am Ionenaustauschermaterial vorbei oder durch dieses hindurch geführt wird.
- Verfahren nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die zu behandelnde Lösung, vorzugsweise Wasser, einerseits am Ionenaustauschermaterial vorbei bzw. durch dieses hindurch und andererseits durch ein vorzugsweise physikalisches Wasserbehandlungsgerät geführt wird.
- Verwendung eines Verfahrens nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß zur Entkarbonisierung, Enteisung oder Entmanganisierung von Wasser bzw. Gewässern.
- Verwendung eines Verfahrens nach einem der Ansprüche 1 bis 10 zum Aufbereiten, insbesondere Entkalken von Trink- und/oder Brauchwasser für den Haushaltsbereich.
- Verwendung eines Verfahrens nach einem der Ansprüche 1 bis 10 zur Erzeugung von Impfkristallen.
Priority Applications (15)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES98105346T ES2241072T3 (es) | 1998-03-24 | 1998-03-24 | Procedimiento para precipitar o flocular sustancias contenidas de disoluciones. |
EP98105346A EP0957066B1 (de) | 1998-03-24 | 1998-03-24 | Verfahren zum Fällen oder Ausflocken von Inhaltsstoffen aus Lösungen |
DE59812745.3T DE59812745C5 (de) | 1998-03-24 | 1998-03-24 | Verfahren zum Fällen oder Ausflocken von Inhaltsstoffen aus Lösungen |
DK98105346T DK0957066T3 (da) | 1998-03-24 | 1998-03-24 | Fremgangsmåde til udfældning eller flokkulering af indholdsstoffer fra oplösninger |
AT98105346T ATE293581T1 (de) | 1998-03-24 | 1998-03-24 | Verfahren zum fällen oder ausflocken von inhaltsstoffen aus lösungen |
PCT/EP1999/001801 WO1999048821A1 (de) | 1998-03-24 | 1999-03-18 | Verfahren zum fällen oder ausflocken von inhaltsstoffen aus lösungen |
AU35183/99A AU3518399A (en) | 1998-03-24 | 1999-03-18 | Method for precipitating or flocculating substances contained in solutions |
EP99916830A EP1515917A1 (de) | 1998-03-24 | 1999-03-18 | Verfahren zum fällen oder ausflocken von inhaltsstoffen aus lösungen |
DE29917556U DE29917556U1 (de) | 1998-03-24 | 1999-03-18 | Vorrichtung zum Fällen oder Ausflocken von Inhaltsstoffen aus Lösungen |
US09/646,855 US6660167B1 (en) | 1998-03-24 | 1999-03-22 | Method for precipitating or flocculating substances out of solutions |
CA002325395A CA2325395C (en) | 1998-03-24 | 1999-03-22 | Method for precipitating or flocculating substances out of solutions |
EP99916860A EP1087911A1 (de) | 1998-03-24 | 1999-03-22 | Verfahren zum fällen oder ausflocken von inhaltsstoffen aus lösungen |
AU35199/99A AU3519999A (en) | 1998-03-24 | 1999-03-22 | Method for precipitating or flocculating substances out of solutions |
PCT/EP1999/001921 WO1999048822A1 (de) | 1998-03-24 | 1999-03-22 | Verfahren zum fällen oder ausflocken von inhaltsstoffen aus lösungen |
DE29923331U DE29923331U1 (de) | 1998-03-24 | 1999-03-22 | Wasserbehandlungseinrichtung |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98105346A EP0957066B1 (de) | 1998-03-24 | 1998-03-24 | Verfahren zum Fällen oder Ausflocken von Inhaltsstoffen aus Lösungen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0957066A1 true EP0957066A1 (de) | 1999-11-17 |
EP0957066B1 EP0957066B1 (de) | 2005-04-20 |
Family
ID=8231641
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98105346A Expired - Lifetime EP0957066B1 (de) | 1998-03-24 | 1998-03-24 | Verfahren zum Fällen oder Ausflocken von Inhaltsstoffen aus Lösungen |
EP99916830A Withdrawn EP1515917A1 (de) | 1998-03-24 | 1999-03-18 | Verfahren zum fällen oder ausflocken von inhaltsstoffen aus lösungen |
EP99916860A Withdrawn EP1087911A1 (de) | 1998-03-24 | 1999-03-22 | Verfahren zum fällen oder ausflocken von inhaltsstoffen aus lösungen |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99916830A Withdrawn EP1515917A1 (de) | 1998-03-24 | 1999-03-18 | Verfahren zum fällen oder ausflocken von inhaltsstoffen aus lösungen |
EP99916860A Withdrawn EP1087911A1 (de) | 1998-03-24 | 1999-03-22 | Verfahren zum fällen oder ausflocken von inhaltsstoffen aus lösungen |
Country Status (9)
Country | Link |
---|---|
US (1) | US6660167B1 (de) |
EP (3) | EP0957066B1 (de) |
AT (1) | ATE293581T1 (de) |
AU (2) | AU3518399A (de) |
CA (1) | CA2325395C (de) |
DE (3) | DE59812745C5 (de) |
DK (1) | DK0957066T3 (de) |
ES (1) | ES2241072T3 (de) |
WO (2) | WO1999048821A1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19960700C2 (de) * | 1999-12-16 | 2003-04-30 | Georg C Schwarting | Verfahren und Vorrichtung zur Behandlung von Flüssigkeiten |
EP2169392A1 (de) | 2008-09-26 | 2010-03-31 | R. Nussbaum AG | Verfahren und Vorrichtung zum Messen der Härte von Wasser |
CN103086523A (zh) * | 2011-10-27 | 2013-05-08 | 河南省电力勘测设计院 | 以中水为水源的节能型电厂循环水高浓缩倍率处理系统 |
EP3581273A1 (de) | 2018-06-13 | 2019-12-18 | WCR Technologie GmbH | Verfahren zum herstellen eines ionenaustauschermaterials, und verwendung des ionenaustauschermaterials zum katalytischen fällen von inhaltsstoffen aus lösungen |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20020920U1 (de) | 2000-12-09 | 2001-02-22 | Schwarting, Georg C., 86152 Augsburg | Vorrichtung zur Fällung von Kalk aus Wasser |
WO2002066384A1 (de) | 2001-02-20 | 2002-08-29 | Watercryst Chemiefreie Wasserbehandlung Gmbh | Einrichtung zur chemisch/physikalischen wasserbehandlung und trinkwasser |
GB2386371B (en) * | 2002-03-15 | 2004-02-18 | Ion Entpr Ltd | Fluid treatment apparatus |
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CA2681676C (en) | 2007-05-04 | 2015-12-29 | Ecolab Inc. | Cleaning compositions containing water soluble magnesium compound and methods of using them |
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US9193610B2 (en) | 2011-08-10 | 2015-11-24 | Ecolab USA, Inc. | Synergistic interaction of weak cation exchange resin and magnesium oxide |
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- 1998-03-24 DK DK98105346T patent/DK0957066T3/da active
- 1998-03-24 DE DE59812745.3T patent/DE59812745C5/de not_active Expired - Lifetime
- 1998-03-24 ES ES98105346T patent/ES2241072T3/es not_active Expired - Lifetime
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1999
- 1999-03-18 DE DE29917556U patent/DE29917556U1/de not_active Expired - Lifetime
- 1999-03-18 WO PCT/EP1999/001801 patent/WO1999048821A1/de not_active Application Discontinuation
- 1999-03-18 AU AU35183/99A patent/AU3518399A/en not_active Abandoned
- 1999-03-18 EP EP99916830A patent/EP1515917A1/de not_active Withdrawn
- 1999-03-22 DE DE29923331U patent/DE29923331U1/de not_active Expired - Lifetime
- 1999-03-22 EP EP99916860A patent/EP1087911A1/de not_active Withdrawn
- 1999-03-22 AU AU35199/99A patent/AU3519999A/en not_active Abandoned
- 1999-03-22 CA CA002325395A patent/CA2325395C/en not_active Expired - Fee Related
- 1999-03-22 US US09/646,855 patent/US6660167B1/en not_active Expired - Lifetime
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DE19960700C2 (de) * | 1999-12-16 | 2003-04-30 | Georg C Schwarting | Verfahren und Vorrichtung zur Behandlung von Flüssigkeiten |
EP2169392A1 (de) | 2008-09-26 | 2010-03-31 | R. Nussbaum AG | Verfahren und Vorrichtung zum Messen der Härte von Wasser |
EP2169393A1 (de) | 2008-09-26 | 2010-03-31 | R. Nussbaum AG | Verfahren und Vorrichtung zum Messen der Härte von Wasser |
CN103086523A (zh) * | 2011-10-27 | 2013-05-08 | 河南省电力勘测设计院 | 以中水为水源的节能型电厂循环水高浓缩倍率处理系统 |
EP3581273A1 (de) | 2018-06-13 | 2019-12-18 | WCR Technologie GmbH | Verfahren zum herstellen eines ionenaustauschermaterials, und verwendung des ionenaustauschermaterials zum katalytischen fällen von inhaltsstoffen aus lösungen |
Also Published As
Publication number | Publication date |
---|---|
ES2241072T3 (es) | 2005-10-16 |
AU3519999A (en) | 1999-10-18 |
WO1999048821A1 (de) | 1999-09-30 |
US6660167B1 (en) | 2003-12-09 |
DE29917556U1 (de) | 2000-01-13 |
DE59812745D1 (de) | 2005-05-25 |
DE29923331U1 (de) | 2000-08-10 |
WO1999048822A1 (de) | 1999-09-30 |
DE59812745C5 (de) | 2014-08-28 |
AU3518399A (en) | 1999-10-18 |
CA2325395A1 (en) | 1999-09-30 |
EP1515917A1 (de) | 2005-03-23 |
DE29923331U8 (de) | 2007-05-31 |
EP0957066B1 (de) | 2005-04-20 |
ATE293581T1 (de) | 2005-05-15 |
EP1087911A1 (de) | 2001-04-04 |
DK0957066T3 (da) | 2005-07-04 |
CA2325395C (en) | 2008-02-19 |
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